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annotate libinterp/corefcn/ft-text-renderer.cc @ 22331:b81b08cc4c83

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maint: Indent namespaces in more files.
author John W. Eaton <jwe@octave.org>
date Wed, 17 Aug 2016 11:43:27 -0400
parents 71dd9d5a5ecd
children 34ce5be04942
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 2016 John W. Eaton
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4 Copyright (C) 2009-2016 Michael Goffioul
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #if defined (HAVE_CONFIG_H)
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25 # include "config.h"
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26 #endif
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27
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28 #include "base-text-renderer.h"
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29
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30 #if defined (HAVE_FREETYPE)
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31
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32 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
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33 #pragma GCC diagnostic push
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34 #pragma GCC diagnostic ignored "-Wold-style-cast"
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35 #endif
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36
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37 #include <ft2build.h>
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38 #include FT_FREETYPE_H
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39
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40 #if defined (HAVE_FONTCONFIG)
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41 # include <fontconfig/fontconfig.h>
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42 #endif
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43
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44 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
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45 #pragma GCC diagnostic pop
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46 #endif
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47
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48 #include <clocale>
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49 #include <cwchar>
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50 #include <iostream>
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51 #include <map>
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52 #include <utility>
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53
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54 #include "singleton-cleanup.h"
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55
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56 #include "error.h"
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57 #include "pr-output.h"
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58 #include "text-renderer.h"
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59
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60 // FIXME: maybe issue at most one warning per glyph/font/size/weight
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61 // combination.
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62
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63 static void
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64 warn_missing_glyph (FT_ULong c)
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65 {
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66 warning_with_id ("Octave:missing-glyph",
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67 "text_renderer: skipping missing glyph for character '%x'", c);
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68 }
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69
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70 static void
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71 warn_glyph_render (FT_ULong c)
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72 {
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73 warning_with_id ("Octave:glyph-render",
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74 "text_renderer: unable to render glyph for character '%x'", c);
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75 }
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76
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77 #if defined (_MSC_VER)
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78 // FIXME: is this really needed?
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79 //
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80 // This is just a trick to avoid multiple symbol definitions.
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81 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type>
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82 // that will cause MSVC not to generate a new instantiation and
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83 // use the imported one instead.
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84 # include "PermMatrix.h"
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85 #endif
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86
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87 // Forward declaration
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88 static void ft_face_destroyed (void *object);
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89
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90 namespace octave
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91 {
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92 class
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93 ft_manager
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94 {
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95 public:
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96 static bool instance_ok (void)
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97 {
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98 bool retval = true;
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99
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100 if (! instance)
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101 {
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102 instance = new ft_manager ();
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103
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104 if (instance)
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105 singleton_cleanup_list::add (cleanup_instance);
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106 }
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107
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108 if (! instance)
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109 error ("unable to create ft_manager!");
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110
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111 return retval;
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112 }
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113
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114 static void cleanup_instance (void) { delete instance; instance = 0; }
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115
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116 static FT_Face get_font (const std::string& name, const std::string& weight,
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117 const std::string& angle, double size)
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118 {
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119 return (instance_ok ()
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120 ? instance->do_get_font (name, weight, angle, size)
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121 : 0);
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122 }
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123
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124 static void font_destroyed (FT_Face face)
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125 {
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126 if (instance_ok ())
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127 instance->do_font_destroyed (face);
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128 }
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129
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130 private:
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131
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132 static ft_manager *instance;
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133
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134 typedef std::pair<std::string, double> ft_key;
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135 typedef std::map<ft_key, FT_Face> ft_cache;
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136
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137 // Cache the fonts loaded by FreeType. This cache only contains
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138 // weak references to the fonts, strong references are only present
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139 // in class text_renderer.
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140 ft_cache cache;
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141
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142 private:
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143
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144 // No copying!
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145
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146 ft_manager (const ft_manager&);
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147
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148 ft_manager& operator = (const ft_manager&);
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149
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150 ft_manager (void)
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151 : library (), freetype_initialized (false), fontconfig_initialized (false)
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152 {
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153 if (FT_Init_FreeType (&library))
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154 error ("unable to initialize FreeType library");
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155 else
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156 freetype_initialized = true;
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157
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158 #if defined (HAVE_FONTCONFIG)
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159 if (! FcInit ())
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160 error ("unable to initialize fontconfig library");
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161 else
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162 fontconfig_initialized = true;
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163 #endif
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164 }
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165
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166 ~ft_manager (void)
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167 {
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168 if (freetype_initialized)
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169 FT_Done_FreeType (library);
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170
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171 #if defined (HAVE_FONTCONFIG)
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172 // FIXME: Skip the call to FcFini because it can trigger the assertion
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173 //
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174 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
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175 //
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176 // if (fontconfig_initialized)
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177 // FcFini ();
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178 #endif
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179 }
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180
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181 FT_Face do_get_font (const std::string& name, const std::string& weight,
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182 const std::string& angle, double size)
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183 {
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184 FT_Face retval = 0;
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185
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186 #if defined (HAVE_FT_REFERENCE_FACE)
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187 // Look first into the font cache, then use fontconfig. If the font
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188 // is present in the cache, simply add a reference and return it.
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189
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190 ft_key key (name + ":" + weight + ":" + angle, size);
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191 ft_cache::const_iterator it = cache.find (key);
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192
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193 if (it != cache.end ())
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194 {
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195 FT_Reference_Face (it->second);
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196 return it->second;
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197 }
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198 #endif
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199
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200 std::string file;
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201
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202 #if defined (HAVE_FONTCONFIG)
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203 if (fontconfig_initialized)
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204 {
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205 int fc_weight, fc_angle;
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206
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207 if (weight == "bold")
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208 fc_weight = FC_WEIGHT_BOLD;
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209 else if (weight == "light")
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210 fc_weight = FC_WEIGHT_LIGHT;
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211 else if (weight == "demi")
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212 fc_weight = FC_WEIGHT_DEMIBOLD;
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213 else
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214 fc_weight = FC_WEIGHT_NORMAL;
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215
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216 if (angle == "italic")
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217 fc_angle = FC_SLANT_ITALIC;
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218 else if (angle == "oblique")
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219 fc_angle = FC_SLANT_OBLIQUE;
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220 else
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221 fc_angle = FC_SLANT_ROMAN;
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222
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223 FcPattern *pat = FcPatternCreate ();
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224
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225 FcPatternAddString (pat, FC_FAMILY,
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226 (reinterpret_cast<const FcChar8*>
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227 (name == "*" ? "sans" : name.c_str ())));
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228
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229 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
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230 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
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231 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
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232
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233 if (FcConfigSubstitute (0, pat, FcMatchPattern))
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234 {
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235 FcResult res;
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236 FcPattern *match;
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237
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238 FcDefaultSubstitute (pat);
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239 match = FcFontMatch (0, pat, &res);
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240
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241 // FIXME: originally, this test also required that
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242 // res != FcResultNoMatch. Is that really needed?
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243 if (match)
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244 {
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245 unsigned char *tmp;
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246
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247 FcPatternGetString (match, FC_FILE, 0, &tmp);
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248 file = reinterpret_cast<char*> (tmp);
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249 }
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250 else
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251 ::warning ("could not match any font: %s-%s-%s-%g",
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252 name.c_str (), weight.c_str (), angle.c_str (),
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253 size);
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254
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255 if (match)
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256 FcPatternDestroy (match);
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257 }
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258
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259 FcPatternDestroy (pat);
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260 }
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261 #endif
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262
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263 if (file.empty ())
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264 {
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265 #if defined (OCTAVE_USE_WINDOWS_API)
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266 file = "C:/WINDOWS/Fonts/verdana.ttf";
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267 #else
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268 // FIXME: find a "standard" font for UNIX platforms
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269 #endif
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270 }
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271
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272 if (! file.empty ())
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273 {
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274 if (FT_New_Face (library, file.c_str (), 0, &retval))
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275 ::warning ("ft_manager: unable to load font: %s", file.c_str ());
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276 #if defined (HAVE_FT_REFERENCE_FACE)
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277 else
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278 {
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279 // Install a finalizer to notify ft_manager that the font is
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280 // being destroyed. The class ft_manager only keeps weak
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281 // references to font objects.
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282
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283 retval->generic.data = new ft_key (key);
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284 retval->generic.finalizer = ft_face_destroyed;
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285
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286 // Insert loaded font into the cache.
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287
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288 cache[key] = retval;
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289 }
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290 #endif
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291 }
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292
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293 return retval;
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294 }
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295
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296 void do_font_destroyed (FT_Face face)
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297 {
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298 if (face->generic.data)
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299 {
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300 ft_key *pkey = reinterpret_cast<ft_key*> (face->generic.data);
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301
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302 cache.erase (*pkey);
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303 delete pkey;
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304 face->generic.data = 0;
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305 }
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306 }
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307
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308 private:
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309 FT_Library library;
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310 bool freetype_initialized;
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311 bool fontconfig_initialized;
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312 };
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313
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314 ft_manager *ft_manager::instance = 0;
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315
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316 }
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317
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318 static void
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319 ft_face_destroyed (void *object)
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320 {
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321 octave::ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object));
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322 }
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323
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324 namespace octave
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325 {
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326 class
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327 OCTINTERP_API
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328 ft_text_renderer : public base_text_renderer
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329 {
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330 public:
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331
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332 enum
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333 {
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334 MODE_BBOX = 0,
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335 MODE_RENDER = 1
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336 };
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337
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338 enum
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339 {
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340 ROTATION_0 = 0,
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341 ROTATION_90 = 1,
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342 ROTATION_180 = 2,
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343 ROTATION_270 = 3
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344 };
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345
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346 public:
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347
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348 ft_text_renderer (void)
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349 : base_text_renderer (), font (), bbox (1, 4, 0.0), halign (0),
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350 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX),
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351 color (dim_vector (1, 3), 0)
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352 { }
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353
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354 ~ft_text_renderer (void) { }
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355
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356 void visit (text_element_string& e);
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357
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358 void visit (text_element_list& e);
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359
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360 void visit (text_element_subscript& e);
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361
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362 void visit (text_element_superscript& e);
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363
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364 void visit (text_element_color& e);
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365
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366 void visit (text_element_fontsize& e);
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367
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368 void visit (text_element_fontname& e);
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369
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370 void visit (text_element_fontstyle& e);
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371
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372 void visit (text_element_symbol& e);
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373
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374 void visit (text_element_combined& e);
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375
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376 void reset (void);
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377
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378 uint8NDArray get_pixels (void) const { return pixels; }
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379
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380 Matrix get_boundingbox (void) const { return bbox; }
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381
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382 uint8NDArray render (text_element *elt, Matrix& box,
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383 int rotation = ROTATION_0);
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384
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385 Matrix get_extent (text_element *elt, double rotation = 0.0);
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386 Matrix get_extent (const std::string& txt, double rotation,
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387 const caseless_str& interpreter);
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388
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389 void set_font (const std::string& name, const std::string& weight,
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390 const std::string& angle, double size);
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391
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392 void set_color (const Matrix& c);
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393
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394 void set_mode (int m);
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395
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396 void text_to_pixels (const std::string& txt,
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397 uint8NDArray& pxls, Matrix& bbox,
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398 int halign, int valign, double rotation,
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399 const caseless_str& interpreter,
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400 bool handle_rotation);
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401
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402 private:
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403
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404 int rotation_to_mode (double rotation) const;
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405
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406 // No copying!
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407
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408 ft_text_renderer (const ft_text_renderer&);
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409
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410 ft_text_renderer& operator = (const ft_text_renderer&);
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diff changeset
411
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412 // Class to hold information about fonts and a strong
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413 // reference to the font objects loaded by FreeType.
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414
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415 class ft_font : public text_renderer::font
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416 {
22331
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417 public:
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418
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419 ft_font (void)
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420 : text_renderer::font (), face (0) { }
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421
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422 ft_font (const std::string& nm, const std::string& wt,
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423 const std::string& ang, double sz, FT_Face f = 0)
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424 : text_renderer::font (nm, wt, ang, sz), face (f)
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425 { }
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426
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427 ft_font (const ft_font& ft);
21209
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428
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diff changeset
429 ~ft_font (void)
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430 {
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431 if (face)
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432 FT_Done_Face (face);
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433 }
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434
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diff changeset
435 ft_font& operator = (const ft_font& ft);
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diff changeset
436
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437 bool is_valid (void) const { return get_face (); }
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diff changeset
438
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439 FT_Face get_face (void) const;
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440
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441 private:
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442
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John W. Eaton <jwe@octave.org>
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443 mutable FT_Face face;
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444 };
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445
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446 void push_new_line (void);
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447
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448 void update_line_bbox (void);
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449
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450 void compute_bbox (void);
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451
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452 int compute_line_xoffset (const Matrix& lb) const;
21209
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453
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454 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0);
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455
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diff changeset
456 public:
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diff changeset
457
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458 void text_to_strlist (const std::string& txt,
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459 std::list<text_renderer::string>& lst, Matrix& bbox,
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460 int halign, int valign, double rotation,
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461 const caseless_str& interp);
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462
67d2965af0b5 revamp text rendering classes
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diff changeset
463 private:
67d2965af0b5 revamp text rendering classes
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diff changeset
464
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465 // The current font used by the renderer.
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466 ft_font font;
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diff changeset
467
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468 // Used to stored the bounding box corresponding to the rendered text.
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diff changeset
469 // The bounding box has the form [x, y, w, h] where x and y represent the
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diff changeset
470 // coordinates of the bottom left corner relative to the anchor point of
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471 // the text (== start of text on the baseline). Due to font descent or
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472 // multiple lines, the value y is usually negative.
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diff changeset
473 Matrix bbox;
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474
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diff changeset
475 // Used to stored the rendered text. It's a 3D matrix with size MxNx4
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diff changeset
476 // where M and N are the width and height of the bounding box.
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diff changeset
477 uint8NDArray pixels;
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diff changeset
478
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diff changeset
479 // Used to store the bounding box of each line. This is used to layout
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diff changeset
480 // multiline text properly.
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diff changeset
481 std::list<Matrix> line_bbox;
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diff changeset
482
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diff changeset
483 // The current horizontal alignment. This is used to align multi-line text.
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John W. Eaton <jwe@octave.org>
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diff changeset
484 int halign;
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John W. Eaton <jwe@octave.org>
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diff changeset
485
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diff changeset
486 // The X offset for the next glyph.
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487 int xoffset;
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diff changeset
488
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diff changeset
489 // The Y offset of the baseline for the current line.
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
490 int line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
491
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diff changeset
492 // The Y offset of the baseline for the next glyph. The offset is relative
b81b08cc4c83 maint: Indent namespaces in more files.
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493 // to line_yoffset. The total Y offset is computed with:
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494 // line_yoffset + yoffset.
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diff changeset
495 int yoffset;
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diff changeset
496
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John W. Eaton <jwe@octave.org>
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diff changeset
497 // The current mode of the rendering process (box computing or rendering).
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
498 int mode;
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John W. Eaton <jwe@octave.org>
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diff changeset
499
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John W. Eaton <jwe@octave.org>
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diff changeset
500 // The base color of the rendered text.
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John W. Eaton <jwe@octave.org>
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diff changeset
501 uint8NDArray color;
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John W. Eaton <jwe@octave.org>
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diff changeset
502
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
503 // A list of parsed strings to be used for printing.
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John W. Eaton <jwe@octave.org>
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diff changeset
504 std::list<text_renderer::string> strlist;
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John W. Eaton <jwe@octave.org>
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diff changeset
505
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
506 // The X offset of the baseline for the current line.
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
507 int line_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
508
21209
67d2965af0b5 revamp text rendering classes
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diff changeset
509 };
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
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diff changeset
510
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
511 void
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John W. Eaton <jwe@octave.org>
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diff changeset
512 ft_text_renderer::set_font (const std::string& name, const std::string& weight,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
513 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
514 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
515 // FIXME: take "fontunits" into account
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
516
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John W. Eaton <jwe@octave.org>
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diff changeset
517 font = ft_font (name, weight, angle, size, 0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
518 }
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John W. Eaton <jwe@octave.org>
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diff changeset
519
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
520 void
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diff changeset
521 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
522 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
523 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
524 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
525 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
526 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
527 // Create a new bbox entry based on the current font.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
528
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
529 FT_Face face = font.get_face ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
530
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
531 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
532 {
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
533 int asc = face->size->metrics.ascender >> 6;
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
534 int desc = face->size->metrics.descender >> 6;
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John W. Eaton <jwe@octave.org>
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diff changeset
535 int h = face->size->metrics.height >> 6;
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
536
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
537 Matrix bb (1, 5, 0.0);
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John W. Eaton <jwe@octave.org>
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diff changeset
538
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
539 bb(1) = desc;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
540 bb(3) = asc - desc;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
541 bb(4) = h;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
542
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
543 line_bbox.push_back (bb);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
544
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
545 xoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
546 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
547 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
548 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
549
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
550 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
551 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
552 // Move to the next line bbox, adjust xoffset based on alignment
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
553 // and yoffset based on the old and new line bbox.
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
554
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
555 Matrix old_bbox = line_bbox.front ();
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
556 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
557 Matrix new_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
558
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
559 xoffset = line_xoffset = compute_line_xoffset (new_bbox);
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
560 line_yoffset += (old_bbox(1) - (new_bbox(1) + new_bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
561 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
562 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
563 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
564 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
565 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
566
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
567 int
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
568 ft_text_renderer::compute_line_xoffset (const Matrix& lb) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
569 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
570 if (! bbox.is_empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
571 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
572 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
573 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
574 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
575 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
576 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
577 return (bbox(2) - lb(2)) / 2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
578 case 2:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
579 return (bbox(2) - lb(2));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
580 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
581 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
582
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
583 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
584 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
585
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
586 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
587 ft_text_renderer::compute_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
588 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
589 // Stack the various line bbox together and compute the final
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
590 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
591
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
592 bbox = Matrix ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
593
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
594 switch (line_bbox.size ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
595 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
596 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
597 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
598
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
599 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
600 bbox = line_bbox.front ().extract (0, 0, 0, 3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
601 break;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
602
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
603 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
604 for (std::list<Matrix>::const_iterator it = line_bbox.begin ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
605 it != line_bbox.end (); ++it)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
606 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
607 if (bbox.is_empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
608 bbox = it->extract (0, 0, 0, 3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
609 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
610 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
611 bbox(1) -= (*it)(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
612 bbox(3) += (*it)(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
613 bbox(2) = octave::math::max (bbox(2), (*it)(2));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
614 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
615 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
616 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
617 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
618 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
619
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
620 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
621 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
622 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
623 // Called after a font change, when in MODE_BBOX mode, to update the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
624 // current line bbox with the new font metrics. This also includes the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
625 // current yoffset, that is the offset of the current glyph's baseline
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
626 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
627
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
628 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
629 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
630 int asc = font.get_face ()->size->metrics.ascender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
631 int desc = font.get_face ()->size->metrics.descender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
632
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
633 Matrix& bb = line_bbox.back ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
634
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
635 if ((yoffset + desc) < bb(1))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
636 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
637 // The new font goes below the bottom of the current bbox.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
638
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
639 int delta = bb(1) - (yoffset + desc);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
640
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
641 bb(1) -= delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
642 bb(3) += delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
643 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
644
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
645 if ((yoffset + asc) > (bb(1) + bb(3)))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
646 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
647 // The new font goes above the top of the current bbox.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
648
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
649 int delta = (yoffset + asc) - (bb(1) + bb(3));
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
650
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
651 bb(3) += delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
652 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
653 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
654 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
655
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
656 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
657 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
658 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
659 mode = m;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
660
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
661 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
662 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
663 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
664 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
665 bbox = Matrix (1, 4, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
666 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
667 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
668 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
669
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
670 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
671 if (bbox.numel () != 4)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
672 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
673 ::warning ("ft_text_renderer: invalid bounding box, cannot render");
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
674
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
675 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
676 pixels = uint8NDArray ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
677 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
678 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
679 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
680 dim_vector d (4, octave_idx_type (bbox(2)),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
681 octave_idx_type (bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
682 pixels = uint8NDArray (d, static_cast<uint8_t> (0));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
683 xoffset = compute_line_xoffset (line_bbox.front ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
684 line_yoffset = -bbox(1)-1;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
685 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
686 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
687 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
688
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
689 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
690 error ("ft_text_renderer: invalid mode '%d'", mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
691 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
692 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
693 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
694
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
695 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
696 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
697 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
698 FT_Face face = font.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
699 FT_UInt glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
700
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
701 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
702 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
703 glyph_index = FT_Get_Char_Index (face, code);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
704
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
705 if (code != '\n'
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
706 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
707 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
708 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
709 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
710 warn_missing_glyph (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
711 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
712 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
713 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
714 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
715 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
716 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
717 if (code == '\n')
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
718 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
719 glyph_index = FT_Get_Char_Index (face, ' ');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
720 if (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
721 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
722 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
723 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
724 warn_missing_glyph (' ');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
725 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
726 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
727 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
728 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
729 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
730 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
731 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
732 warn_glyph_render (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
733 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
734 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
735 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
736 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
737 int x0, y0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
738
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
739 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
740 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
741 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
742
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
743 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
744 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
745 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
746 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
747
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
748 x0 = xoffset + face->glyph->bitmap_left;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
749 y0 = line_yoffset + yoffset + face->glyph->bitmap_top;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
750
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
751 // 'w' seems to have a negative -1
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
752 // face->glyph->bitmap_left, this is so we don't
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
753 // index out of bound, and assumes we've allocated
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
754 // the right amount of horizontal space in the bbox.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
755 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
756 x0 = 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
757
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
758 for (int r = 0; static_cast<unsigned int> (r) < bitmap.rows; r++)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
759 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
760 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
761 unsigned char pix = bitmap.buffer[r*bitmap.width+c];
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
762 if (x0+c < 0 || x0+c >= pixels.dim2 ()
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
763 || y0-r < 0 || y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
764 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
765 //::warning ("ft_text_renderer: pixel out of bound (char=%d, (x,y)=(%d,%d), (w,h)=(%d,%d)",
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
766 // str[i], x0+c, y0-r, pixels.dim2 (), pixels.dim3 ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
767 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
768 else if (pixels(3, x0+c, y0-r).value () == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
769 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
770 pixels(0, x0+c, y0-r) = color(0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
771 pixels(1, x0+c, y0-r) = color(1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
772 pixels(2, x0+c, y0-r) = color(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
773 pixels(3, x0+c, y0-r) = pix;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
774 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
775 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
776
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
777 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
778 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
779 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
780
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
781 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
782 if (code == '\n')
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
783 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
784 glyph_index = FT_Get_Char_Index (face, ' ');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
785 if (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
786 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
787 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
788 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
789 warn_missing_glyph (' ');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
790 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
791 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
792 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
793 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
794 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
795 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
796 Matrix& bb = line_bbox.back ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
797
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
798 // If we have a previous glyph, use kerning information.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
799 // This usually means moving a bit backward before adding
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
800 // the next glyph. That is, "delta.x" is usually < 0.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
801 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
802 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
803 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
804
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
805 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
806 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
807
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
808 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
809 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
810
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
811 // Extend current X offset box by the width of the current
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
812 // glyph. Then extend the line bounding box if necessary.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
813
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
814 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
815 bb(2) = octave::math::max (bb(2), xoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
816 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
817 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
818 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
819 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
820 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
821
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
822 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
823 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
824
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
825 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
826 ft_text_renderer::text_to_strlist (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
827 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
828 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
829 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
830 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
831 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
832 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
833
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
834 // First run text_to_pixels which will also build the string list
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
835
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
836 text_to_pixels (txt, pxls, box, ha, va, rot, interp, false);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
837
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
838 lst = strlist;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
839 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
840
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
841 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
842 ft_text_renderer::visit (text_element_string& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
843 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
844 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
845 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
846 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
847
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
848 std::string str = e.string_value ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
849 size_t n = str.length ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
850 size_t curr = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
851 size_t idx = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
852 mbstate_t ps;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
853 memset (&ps, 0, sizeof (ps)); // Initialize state to 0.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
854 wchar_t wc;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
855
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
856 text_renderer::string fs (str, font, xoffset, yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
857
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
858 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
859 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
860 size_t r = std::mbrtowc (&wc, str.data () + curr, n, &ps);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
861
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
862 if (r > 0
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
863 && r != static_cast<size_t> (-1)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
864 && r != static_cast<size_t> (-2))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
865 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
866 n -= r;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
867 curr += r;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
868
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
869 if (wc == L'\n')
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
870 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
871 // Finish previous string in srtlist before processing
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
872 // the newline character
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
873 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
874 fs.set_color (color);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
875 std::string s = str.substr (idx, curr - idx - 1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
876 if (! s.empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
877 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
878 fs.set_string (s);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
879 strlist.push_back (fs);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
880 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
881 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
882
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
883 glyph_index = process_character (wc, previous);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
884
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
885 if (wc == L'\n')
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
886 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
887 previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
888 // Start a new string in strlist
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
889 idx = curr;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
890 fs = text_renderer::string (str.substr (idx), font,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
891 line_xoffset, yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
892
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
893 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
894 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
895 previous = glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
896 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
897 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
898 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
899 if (r != 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
900 ::warning ("ft_text_renderer: failed to decode string `%s' with "
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
901 "locale `%s'", str.c_str (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
902 std::setlocale (LC_CTYPE, 0));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
903 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
904 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
905 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
906
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
907 if (! fs.get_string ().empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
908 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
909 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
910 fs.set_color (color);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
911 strlist.push_back (fs);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
912 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
913 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
914 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
915
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
916 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
917 ft_text_renderer::visit (text_element_list& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
918 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
919 // Save and restore (after processing the list) the current font and color.
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
920
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
921 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
922 uint8NDArray saved_color (color);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
923
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
924 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
925
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
926 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
927 color = saved_color;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
928 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
929
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
930 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
931 ft_text_renderer::visit (text_element_subscript& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
932 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
933 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
934 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
935 int saved_yoffset = yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
936
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
937 set_font (font.get_name (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
938 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
939
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
940 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
941 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
942 int h = font.get_face ()->size->metrics.height >> 6;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
943
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
944 // Shifting the baseline by 2/3 the font height seems to produce
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
945 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
946 yoffset -= (h * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
947
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
948 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
949 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
950 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
951
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
952 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
953
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
954 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
955 // If line_yoffset changed, this means we moved to a new line; hence yoffset
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
956 // cannot be restored, because the saved value is not relevant anymore.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
957 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
958 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
959 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
960
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
961 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
962 ft_text_renderer::visit (text_element_superscript& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
963 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
964 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
965 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
966 int saved_yoffset = yoffset;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
967
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
968 set_font (font.get_name (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
969 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
970
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
971 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
972 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
973 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
974
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
975 // Shifting the baseline by 2/3 base font ascender seems to produce
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
976 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
977 yoffset += (s_asc * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
978
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
979 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
980 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
981 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
982
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
983 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
984
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
985 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
986 // If line_yoffset changed, this means we moved to a new line; hence yoffset
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
987 // cannot be restored, because the saved value is not relevant anymore.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
988 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
989 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
990 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
991
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
992 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
993 ft_text_renderer::visit (text_element_color& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
994 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
995 if (mode == MODE_RENDER)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
996 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
997 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
998
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
999 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1000 ft_text_renderer::visit (text_element_fontsize& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1001 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1002 double sz = e.get_fontsize ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1003
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1004 // FIXME: Matlab documentation says that the font size is expressed
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1005 // in the text object FontUnit.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1006
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1007 set_font (font.get_name (), font.get_weight (), font.get_angle (), sz);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1008
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1009 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1010 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1011 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1012
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1013 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1014 ft_text_renderer::visit (text_element_fontname& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1015 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1016 set_font (e.get_fontname (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1017 font.get_size ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1018
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1019 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1020 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1021 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1022
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1023 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1024 ft_text_renderer::visit (text_element_fontstyle& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1025 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1026 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1027 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1028 case text_element_fontstyle::normal:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1029 set_font (font.get_name (), "normal", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1030 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1031
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1032 case text_element_fontstyle::bold:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1033 set_font (font.get_name (), "bold", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1034 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1035
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1036 case text_element_fontstyle::italic:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1037 set_font (font.get_name (), "normal", "italic", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1038 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1039
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1040 case text_element_fontstyle::oblique:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1041 set_font (font.get_name (), "normal", "oblique", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1042 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1043 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1044
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1045 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1046 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1047 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1048
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1049 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1050 ft_text_renderer::visit (text_element_symbol& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1051 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1052 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1053
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1054 text_renderer::string fs (std::string ("-"), font, xoffset, yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1055
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1056 if (code != text_element_symbol::invalid_code && font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1057 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1058 process_character (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1059 fs.set_code (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1060 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1061 else if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1062 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1063
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1064 if (fs.get_code ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1065 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1066 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1067 fs.set_color (color);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1068 strlist.push_back (fs);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1069 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1070 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1071
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1072 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1073 ft_text_renderer::visit (text_element_combined& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1074 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1075 int saved_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1076 int max_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1077
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1078 for (text_element_combined::iterator it = e.begin (); it != e.end (); ++it)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1079 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1080 xoffset = saved_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1081 (*it)->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1082 max_xoffset = octave::math::max (xoffset, max_xoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1083 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1084
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1085 xoffset = max_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1086 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1087
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1088 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1089 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1090 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1091 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1092 set_color (Matrix (1, 3, 0.0));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1093 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1094
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1095 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1096 ft_text_renderer::set_color (const Matrix& c)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1097 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1098 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1099 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1100 color(0) = static_cast<uint8_t> (c(0)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1101 color(1) = static_cast<uint8_t> (c(1)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1102 color(2) = static_cast<uint8_t> (c(2)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1103 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1104 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1105 ::warning ("ft_text_renderer::set_color: invalid color");
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1106 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1107
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1108 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1109 ft_text_renderer::render (text_element *elt, Matrix& box, int rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1110 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1111 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1112 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1113 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1114 box = bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1115
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1116 set_mode (MODE_RENDER);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1117 // Clear the list of parsed strings
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1118 strlist.clear ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1119
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1120 if (pixels.numel () > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1121 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1122 elt->accept (*this);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1123
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1124 switch (rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1125 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1126 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1127 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1128
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1129 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1130 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1131 Array<octave_idx_type> perm (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1132 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1133 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1134 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1135 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1136
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1137 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1138 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1139 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1140 idx(2) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1141 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1142 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1143 break;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1144
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1145 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1146 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1147 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1148 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1149 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1150 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1151 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1152 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1153 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1154
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1155 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1156 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1157 Array<octave_idx_type> perm (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1158 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1159 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1160 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1161 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1162
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1163 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1164 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1165 idx(1) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1166 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1167 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1168 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1169 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1170 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1171 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1172
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1173 return pixels;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1174 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1175
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1176 // Note:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1177 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1178 // y-extent is overly large because it is measured from baseline-to-baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1179 // Calling routines, such as ylabel, may need to account for this mismatch.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1180
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1181 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1182 ft_text_renderer::get_extent (text_element *elt, double rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1183 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1184 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1185 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1186 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1187
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1188 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1189
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1190 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1191 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1192 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1193 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1194 extent(0) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1195 extent(1) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1196 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1197
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1198 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1199 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1200 extent(0) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1201 extent(1) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1202 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1203
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1204 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1205 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1206
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1207 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1208 ft_text_renderer::get_extent (const std::string& txt, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1209 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1210 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1211 text_element *elt = text_parser::parse (txt, interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1212 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1213 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1214
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1215 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1216 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1217
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1218 int
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1219 ft_text_renderer::rotation_to_mode (double rotation) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1220 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1221 // Clip rotation to range [0, 360]
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1222 while (rotation < 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1223 rotation += 360.0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1224 while (rotation > 360.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1225 rotation -= 360.0;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1226
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1227 if (rotation == 0.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1228 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1229 else if (rotation == 90.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1230 return ROTATION_90;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1231 else if (rotation == 180.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1232 return ROTATION_180;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1233 else if (rotation == 270.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1234 return ROTATION_270;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1235 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1236 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1237 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1238
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1239 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1240 ft_text_renderer::text_to_pixels (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1241 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1242 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1243 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1244 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1245 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1246 int rot_mode = rotation_to_mode (rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1247
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1248 halign = _halign;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1249
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1250 text_element *elt = text_parser::parse (txt, interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1251 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1252 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1253
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1254 if (pxls.is_empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1255 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1256
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1257 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1258 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1259 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1260 box(0) = -box(2)/2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1261 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1262
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1263 case 2:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1264 box(0) = -box(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1265 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1266
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1267 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1268 box(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1269 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1270 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1271
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1272 switch (valign)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1273 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1274 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1275 box(1) = -box(3)/2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1276 break;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1277
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1278 case 2:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1279 box(1) = -box(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1280 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1281
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1282 case 3:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1283 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1284
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1285 case 4:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1286 box(1) = -box(3)-box(1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1287 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1288
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1289 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1290 box(1) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1291 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1292 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1293
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1294 if (handle_rotation)
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1295 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1296 switch (rot_mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1297 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1298 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1299 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1300 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1301 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1302 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1303
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1304 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1305 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1306 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1307 break;
17271
cb7233cfbf43 Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17270
diff changeset
1308
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1309 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1310 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1311 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1312 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1313 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1314 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1315 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1316 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1317
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1318 ft_text_renderer::ft_font::ft_font (const ft_font& ft)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1319 : text_renderer::font (ft), face (0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1320 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1321 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1322 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1323
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1324 if (ft_face && FT_Reference_Face (ft_face) == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1325 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1326 #endif
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1327 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1328
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1329 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1330 ft_text_renderer::ft_font::operator = (const ft_font& ft)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1331 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1332 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1333 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1334 text_renderer::font::operator = (ft);
17271
cb7233cfbf43 Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17270
diff changeset
1335
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1336 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1337 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1338 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1339 face = 0;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1340 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1341
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1342 #if defined (HAVE_FT_REFERENCE_FACE)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1343 FT_Face ft_face = ft.get_face ();
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1344
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1345 if (ft_face && FT_Reference_Face (ft_face) == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1346 face = ft_face;
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1347 #endif
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1348 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1349
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1350 return *this;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1351 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1352
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1353 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1354 ft_text_renderer::ft_font::get_face (void) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1355 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1356 if (! face && ! name.empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1357 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1358 face = ft_manager::get_font (name, weight, angle, size);
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1359
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1360 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1361 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1362 if (FT_Set_Char_Size (face, 0, size*64, 0, 0))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1363 ::warning ("ft_text_renderer: unable to set font size to %g", size);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1364 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1365 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1366 ::warning ("ft_text_renderer: unable to load appropriate font");
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1367 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1368
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1369 return face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1370 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1371 }
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1372
20945
9d9270e2f98f eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents: 20715
diff changeset
1373 #endif
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1374
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1375 namespace octave
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1376 {
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1377 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1378 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1379 {
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1380 #if defined (HAVE_FREETYPE)
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1381 return new ft_text_renderer ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1382 #else
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1383 return 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1384 #endif
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1385 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1386 }